IMR 4064 w/ 168s and 178gr AMAX in ,308
- Thread starter Jason280
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Re: IMR 4064 w/ 168s and 178gr AMAX in ,308
start at 42gn's and work up from that with a ladder.then you can go from there.
start at 42gn's and work up from that with a ladder.then you can go from there.
Re: IMR 4064 w/ 168s and 178gr AMAX in ,308
better yet start at 40gr with bullet .0001 of lands, load a few this way & watch the primers for pressure signs, this way when you find right coal the pressure will be lower if you have to back up & add more jump,coal usally makes more difference in group size than any thing else, some guns like no jump some like a lot, but if you start at lands wirh a low powder charge & work your way back you will always have less pressure further back, hope this helps
better yet start at 40gr with bullet .0001 of lands, load a few this way & watch the primers for pressure signs, this way when you find right coal the pressure will be lower if you have to back up & add more jump,coal usally makes more difference in group size than any thing else, some guns like no jump some like a lot, but if you start at lands wirh a low powder charge & work your way back you will always have less pressure further back, hope this helps
